2017.1.0xf3 editor crashes while importing standart assets

Subj. I tried to add standard assets set from Asset Store. I absent and when I came back, I’ve fount out that the editor crashed. I’ve restarted it and tried to import package (AS says that it is fully downloaded). Editor crashed. The log is about 500 lines, paste.org rejects it.

Hardware: AMD Phenom II 1055T, 4 GiB RAM, GeForce GTX 550 Ti;
OS: Ubuntu MATE 16.04.3, nVidia drivers 375.66.

In addition I’ve got tis error message in console:

Error loading launcher://unity//home/MyUsername/.local/share/unity3d/Packages/node_modules/unity-editor-home/dist/index.html?code=rKJu-LpoWdPfpoMUFFb_zQ006f&locale=en&session_state=40bc10c17db487798c84d7043a9ece51928fa80abc5067a7a52b60d338fc0a95.1k-7VEICGVwKcyEDz4FXPQ009f#/login

loading launcher error happens on windows as well, not specific to linux.

Hmmm… 5.6.2xf1 crashes on importing Postprocessing Stack as well. Looks like it is Ubuntu MATE or hardware dependent…

Last strings of the log

[0811/173931:ERROR:browser_main_loop.cc(207)] GLib-GObject: invalid cast from 'GtkDrawingArea' to 'GtkDialog'
[0811/173931:ERROR:browser_main_loop.cc(207)] Gtk: IA__gtk_dialog_get_content_area: assertion 'GTK_IS_DIALOG (dialog)' failed
requesting resize 553 x 524
resizing window to 553 x 524
Desktop is 1680 x 1050 @ 60 Hz
Refresh: detecting if any assets need to be imported or removed ... Refresh: elapses 0,019992 seconds (Nothing changed)
[0811/173945:ERROR:browser_main_loop.cc(207)] Gtk: gtk_file_chooser_default_set_current_name: assertion 'impl->action == GTK_FILE_CHOOSER_ACTION_SAVE || impl->action == GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER' failed
Receiving unhandled NULL exception
#0  0x007fffd670f440 in funlockfile
#1  0x007fffd670f8a0 in gdk_window_set_geometry_hints
#2  0x007fffd670f910 in gtk_decorated_window_move_resize_window
#3  0x007fffd670fa10 in g_closure_invoke
#4  0x007fffd670faa0 in g_signal_emit_valist
#5  0x007fffd670fc20 in g_signal_emit
#6  0x007fffd670fd00 in gtk_settings_set_double_property
#7  0x007fffd670fd60 in gtk_button_get_type
#8  0x007fffd670fd90 in g_cclosure_marshal_VOID__OBJECTv
#9  0x007fffd670fde0 in g_closure_invoke
#10 0x007fffd670fe70 in g_signal_emit_valist
#11 0x007fffd670fff0 in g_signal_emit
#12 0x007fffd67100d0 in gtk_widget_set_can_default
#13 0x007fffd6710100 in gtk_settings_set_double_property
#14 0x007fffd6710110 in gtk_size_group_get_widgets
#15 0x007fffd6710130 in gtk_box_get_type
#16 0x007fffd6710190 in g_cclosure_marshal_VOID__BOXEDv
#17 0x007fffd67101f0 in g_closure_invoke
#18 0x007fffd6710280 in g_signal_emit_valist
#19 0x007fffd6710400 in g_signal_emit_by_name
#20 0x007fffd6710580 in gtk_size_group_get_widgets
#21 0x007fffd67105a0 in gtk_box_get_type
#22 0x007fffd6710600 in g_cclosure_marshal_VOID__BOXEDv
#23 0x007fffd6710660 in g_closure_invoke
#24 0x007fffd67106f0 in g_signal_emit_valist
#25 0x007fffd6710870 in g_signal_emit_by_name
#26 0x007fffd67109f0 in gtk_size_group_get_widgets
#27 0x007fffd6710a10 in gtk_decorated_window_move_resize_window
#28 0x007fffd6710a40 in g_cclosure_marshal_VOID__BOXEDv
#29 0x007fffd6710aa0 in g_closure_invoke
#30 0x007fffd6710b30 in g_signal_emit_valist
#31 0x007fffd6710cb0 in g_signal_emit_by_name
#32 0x007fffd6710e30 in gtk_size_group_get_widgets
#33 0x007fffd6710e50 in gtk_decorated_window_move_resize_window
#34 0x007fffd6710f20 in gtk_window_set_focus
#35 0x007fffd6710fb0 in g_closure_invoke
#36 0x007fffd6711020 in g_signal_handler_disconnect
#37 0x007fffd6711170 in g_signal_emit_valist
#38 0x007fffd6711320 in g_signal_emit
#39 0x007fffd6711400 in gtk_widget_show
#40 0x007fffd6711410 in DisplayProgressbar(core::basic_string<char, core::StringStorageDefault<char> > const&, core::basic_string<char, core::StringStorageDefault<char> > const&, float, bool)
#41 0x007fffd6711450 in ExtractAndPrepareAssetList(core::basic_string<char, core::StringStorageDefault<char> > const&, std::vector<ImportPackageItem, std::allocator<ImportPackageItem> >&, core::basic_string<char, core::StringStorageDefault<char> >&)
#42 0x007fffd6712070 in ImportPackageGUI(core::basic_string<char, core::StringStorageDefault<char> > const&)
#43 0x007fffd67120e0 in AssetsMenu::ImportPackage()
#44 0x007fffd6712220 in AssetsMenu::Execute(MenuItem const&)
#45 0x007fffd6712400 in MenuController::ExecuteMenuItem(MenuItem&)
#46 0x007fffd6712460 in OnActivated(MenuItem*)
#47 0x007fffd67124c0 in g_closure_invoke
#48 0x007fffd6712530 in g_signal_handler_disconnect
#49 0x007fffd6712680 in g_signal_emit_valist
#50 0x007fffd6712830 in g_signal_emit
#51 0x007fffd6712910 in gtk_widget_activate
#52 0x007fffd6712930 in gtk_menu_shell_activate_item
#53 0x007fffd6712960 in gtk_menu_shell_activate_item
#54 0x007fffd67129e0 in gtk_marshal_VOID__UINT_STRING
#55 0x007fffd6712a10 in g_closure_invoke
#56 0x007fffd6712a80 in g_signal_handler_disconnect
#57 0x007fffd6712bd0 in g_signal_emit_valist
#58 0x007fffd6712d90 in g_signal_emit
#59 0x007fffd6712e70 in gtk_widget_translate_coordinates
#60 0x007fffd6712eb0 in gtk_propagate_event
#61 0x007fffd6712ee0 in gtk_main_do_event
#62 0x007fffd6712f30 in gdk_event_get_graphics_expose
#63 0x007fffd6712f40 in g_main_context_dispatch
#64 0x007fffd6712fd0 in g_main_context_dispatch
#65 0x007fffd6713030 in g_main_loop_run
#66 0x007fffd6713060 in gtk_main
#67 0x007fffd67130e0 in main
#68 0x007fffd67139f0 in __libc_start_main
#69 0x007fffd6713ab0 in _start
Launching bug reporter
/home/builduser/buildslave/unity/build/Editor/Platform/Linux/UsbDevices.cpp:UsbDevicesQuery

UPD: looks like it is MATE problem, with XFCE importing works fine.